摘要，關鍵字翻譯
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摘要：從天然食用紫卷心菜中以水作溶劑提取紫紅色素，分別用微波和超聲波作輔助并對提取溫度、時間及次數(shù)等工藝條件進了研究。實驗結果表明，微波輔助之以水作溶劑提取天然食用紫卷心... 摘要：從天然食用紫卷心菜中以水作溶劑提取紫紅色素，分別用微波和超聲波作輔助并對提取溫度、時間及次數(shù)等工藝條件進了研究。實驗結果表明，微波輔助之以水作溶劑提取天然食用紫卷心菜中紫紅色素效果Z好，Z佳提取條件為：微波火力為80，輻射時間180秒。 關鍵字：紫卷心菜；紅色素；提??；微波；超聲波。 展開
全部評論(2條)
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- 較勁腦汁想 2009-05-16 00:00:00
- 紫卷心菜：Purple cabbage 紅色素：Red dye 提取: extract 微波：microwave 超聲波：ultra-sonic wave
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- zitianya12 2009-05-16 00:00:00
- Abstract: Purple cabbage from the natural food in water for solvent extraction Su-purple， respectively， for the use of microwave and ultrasound-assisted extraction and temperature， time and frequency of research into the process conditions. The experimental results show that the microwave-assisted solvent extraction of water for human consumption of natural purple purple cabbage in the Su-best， the best extraction conditions were as follows: microwave power of 80， irradiation time 180 seconds.
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熱門問答
- 摘要，關鍵字翻譯
- 摘要：從天然食用紫卷心菜中以水作溶劑提取紫紅色素，分別用微波和超聲波作輔助并對提取溫度、時間及次數(shù)等工藝條件進了研究。實驗結果表明，微波輔助之以水作溶劑提取天然食用紫卷心... 摘要：從天然食用紫卷心菜中以水作溶劑提取紫紅色素，分別用微波和超聲波作輔助并對提取溫度、時間及次數(shù)等工藝條件進了研究。實驗結果表明，微波輔助之以水作溶劑提取天然食用紫卷心菜中紫紅色素效果Z好，Z佳提取條件為：微波火力為80，輻射時間180秒。 關鍵字：紫卷心菜；紅色素；提??；微波；超聲波。 展開
2009-05-15 15:29:46
407
2
- 【生物專業(yè)英語】摘要翻譯
- Abstract:Heavymetals，suchascadmium，copper，lead，chromiumandmercury，areimportantenvironmentalpollutants，particularlyinareaswithhighanthropogenicpressure.Theirpresenceinthea... Abstract: Heavy metals， such as cadmium， copper， lead， chromium and mercury， are important environmental pollutants， particularly in areas with high anthropogenic pressure. Their presence in the atmosphere， soil and water， even in traces can cause serious problems to all organisms， and heavy metal bioaccumulation in the food chain especially can be highly dangerous to human health. Heavy metals enter the human body mainly through two routes namely: inhalation and ingestion， ingestion being the main route of exposure to these elements in human population. Heavy metals intake by human populations through food chain has been reported in many countries. Soil threshold for heavy metal toxicity is an important factor affecting soil environmental capacity of heavy metal and determines heavy metal cumulative loading limits. For soil-plant system， heavy metal toxicity threshold is the highest permissible content in the soil (total or bioavailable concentration) that does not pose any phytotoxic effects or heavy metals in the edible parts of the crops does not exceed food hygiene standards. Factors affecting the thresholds of dietary toxicity of heavy metal in soil-crop system include: soil type which includes soil pH， organic matter content， clay mineral and other soil chemical and biochemical properties; and crop species or cultivars regulated by genetic basis for heavy metal transport and accumulation in plants. In addition， the interactions of soil-plant root-microbes play important roles in regulating heavy metal movement from soil to the edible parts of crops. Agronomic practices such as fertilizer and water managements as well as crop rotation system can affect bioavailability and crop accumulation of heavy metals， thus influencing the thresholds for assessing dietary toxicity of heavy metals in the food chain. This paper reviews the phytotoxic effects and bioaccumulation of heavy metals in vegetables and food crops and assesses soil heavy metal thresholds for potential dietary toxicity. 用翻譯軟件的免回，哥也有，真誠求助高手！ 展開
2010-12-13 19:23:10
631
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- 幫忙翻譯論文摘要
- 換熱器是化工、煉油、動力、食品、輕工等許多工業(yè)部門廣泛應用的一種通用設備。其性能的好壞直接影響過程工業(yè)熱經(jīng)濟性的高低。近年來，由于能源危機，強化傳熱技術和新型換熱器的研究... 換熱器是化工、煉油、動力、食品、輕工等許多工業(yè)部門廣泛應用的一種通用設備。其性能的好壞直接影響過程工業(yè)熱經(jīng)濟性的高低。近年來，由于能源危機，強化傳熱技術和新型換熱器的研究得了飛速發(fā)展。本次的實驗是在前人設計的帶螺旋折流片（下簡稱螺旋片）換熱器的基礎上再在內(nèi)圓管多加上擾流柱，分析不同操作參數(shù)和結構參數(shù)條件下流體傳熱情況，由此得出影響換熱器傳熱性能的條件，為進一步研究靜態(tài)混合器傳熱情況和其在實際工程及設計中的應用奠定基礎。 本文對換熱器進行了研究，測得殼程空氣進出口溫度，利用溫差傳熱，以努塞爾準數(shù)作為衡量換熱器傳熱性能的標準，分別考察了雷諾數(shù)對努塞爾準數(shù)的影響，并與空管進行了比較。換熱器器中由于擾流柱的作用，使進入管中的流體在流經(jīng)擾流柱時產(chǎn)生旋渦，有效地消除了徑向主流道的速度梯度和溫度梯度。因傳熱邊界層大大減薄，使得邊界層內(nèi)流體不斷得到更新，熱阻下降，傳熱過程得到強化。 通過實驗可以得出一些結論: 由于有螺旋片同擾流柱的存在使得擾動螺旋型換熱器的傳熱效果明顯要優(yōu)于圓滑管型換熱器同螺旋型換熱器;螺旋片使流體具有向外甩開的離心力，流體在流過擾流柱時因被分流、切割、再生，不僅加速了流速并且在柱后形成渦流，加速壁面流體的更新，減薄粘性邊界層底層的厚度，從而提高了傳熱性能; 同一模型在不同Re下，隨著Re的增加，Nu也隨著增加，在不計阻力時，模型的傳熱效果隨著Re的增加而提高 不要在線翻譯的。希望幫一忙！ 如果好再加100分，我現(xiàn)在非常急，馬上就要交了。 展開
2018-11-16 22:06:50
430
0
- 幫忙翻譯論文摘要
- 換熱器是化工、煉油、動力、食品、輕工等許多工業(yè)部門廣泛應用的一種通用設備。其性能的好壞直接影響過程工業(yè)熱經(jīng)濟性的高低。近年來，由于能源危機，強化傳熱技術和新型換熱器的研究... 換熱器是化工、煉油、動力、食品、輕工等許多工業(yè)部門廣泛應用的一種通用設備。其性能的好壞直接影響過程工業(yè)熱經(jīng)濟性的高低。近年來，由于能源危機，強化傳熱技術和新型換熱器的研究得了飛速發(fā)展。本次的實驗是在前人設計的帶螺旋折流片（下簡稱螺旋片）換熱器的基礎上再在內(nèi)圓管多加上擾流柱，分析不同操作參數(shù)和結構參數(shù)條件下流體傳熱情況，由此得出影響換熱器傳熱性能的條件，為進一步研究靜態(tài)混合器傳熱情況和其在實際工程及設計中的應用奠定基礎。 本文對換熱器進行了研究，測得殼程空氣進出口溫度，利用溫差傳熱，以努塞爾準數(shù)作為衡量換熱器傳熱性能的標準，分別考察了雷諾數(shù)對努塞爾準數(shù)的影響，并與空管進行了比較。換熱器器中由于擾流柱的作用，使進入管中的流體在流經(jīng)擾流柱時產(chǎn)生旋渦，有效地消除了徑向主流道的速度梯度和溫度梯度。因傳熱邊界層大大減薄，使得邊界層內(nèi)流體不斷得到更新，熱阻下降，傳熱過程得到強化。 通過實驗可以得出一些結論: 由于有螺旋片同擾流柱的存在使得擾動螺旋型換熱器的傳熱效果明顯要優(yōu)于圓滑管型換熱器同螺旋型換熱器;螺旋片使流體具有向外甩開的離心力，流體在流過擾流柱時因被分流、切割、再生，不僅加速了流速并且在柱后形成渦流，加速壁面流體的更新，減薄粘性邊界層底層的厚度，從而提高了傳熱性能; 同一模型在不同Re下，隨著Re的增加，Nu也隨著增加，在不計阻力時，模型的傳熱效果隨著Re的增加而提高 不要翻譯軟件翻譯的。如果好再加分 展開
2018-11-25 12:54:46
431
0
- 翻譯納米材料摘要（2）
- Moreover， the particle size of incorporated ZnO calculated from the effective mass model was close to the results obtained from HRTEM. The synthesis method developed in course of this work can be used for the fabrication of different polym... Moreover， the particle size of incorporated ZnO calculated from the effective mass model was close to the results obtained from HRTEM. The synthesis method developed in course of this work can be used for the fabrication of different polymer-inorganic transparent nanocomposites with other functionalities. In the second part of the thesis， we studied a method for the fabrication of micro-porous surface layer – made of copper nanoparticles – on the surface of copper plates (suitable for heat exchangers). The micro-porous surfaces were formed from dendritic network of copper nanoparticles obtained by electrodeposition from solution using dynamic bubble formation and removal as template. The surface layer engineered and its structures were optimized in order to enhance the boiling heat transfer coefficient. To further optimize the dendritic structure， additional annealing step was introduce and its effect on the surface layer structure and properties were investigated. The properties of the deposited surface structures were investigated and its effect on the enhancement of the heart transfer coefficient has been studied. The fabricated enhanced surface has shown an excellent performance in nucleate boiling. Pool boiling tests were performed on refrigerant fluids (R134a) to evaluate the boiling performance of the electrodeposited nanostructured micro-porous structures. At heat flux of 1 W/cm2， the heat transfer coefficient is enhanced over 15 times compared to a plain reference surface. A model has been presented to explain the enhancement based on the structure characteristics. 展開
2006-10-18 01:46:56
415
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- 納米材料的摘要翻譯（7）
- Drivers and Directions In the United States， the EPA and NIOSH are spearheading research into nanoparticles and their associated health risks through a variety of funded research projects and information exchange programs. NIOSH’s Web si... Drivers and Directions In the United States， the EPA and NIOSH are spearheading research into nanoparticles and their associated health risks through a variety of funded research projects and information exchange programs. NIOSH’s Web site also cites its participation in the multiagency National Nanotechnology Initiative and the Nanoscale Science， Engineering and Technology Subcommittee of the National Science and Technology Council’s Committee on Technology. But on the whole， the study of nanotechnology in the workplace is still in its infancy. Or as Keith Rickabaugh， technical director of materials and analytical services for RJ Lee Group， Monroeville， Pa.， puts it， “what has been learned is that there is much more to learn.” Rickabaugh goes on to say that， “We need to learn how to economically/reasonably establish safe work practices and engineering controls to protect workers from an ‘unknown’ exposure risk. That includes performing studies to document the health risks of nanosized particles， and training workers to understand and be able to characterize those materials.” 展開
2006-10-18 01:02:26
615
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- 翻譯一段納米材料的摘要(1)
- Abstract Nanomaterials and nanotechnology have been hot issues during the recent decades. This thesis deals with the fabrication and engineering of novel nanomaterials with enhanced functionality， particularly nanocomposites and nanostruc... Abstract Nanomaterials and nanotechnology have been hot issues during the recent decades. This thesis deals with the fabrication and engineering of novel nanomaterials with enhanced functionality， particularly nanocomposites and nanostructured surfaces. The study includes two parts; in the first part， bulk transparent polymer-inorganic nanocomposites were produced by a novel synthesis method and its UV-absorption has been investigated. In the second part， nanostructured microporous surface layers， of copper， were fabricated by electrodeposition process and its effect on material’s performance for pool boiling has been investigated evaluated.In the first part of the thesis， bulk polymer-inorganic nanocomposites composed of poly(methylmethacrylate) (PMMA) and zinc compounds were prepared by an in situ sol-gel transition polymerization of zinc complex in PMMA matrix. The immiscibility of heterophases of solid organic and inorganic constituents was resolved by the in situ sol-gel transition polymerization of ZnO nanofillers within PMMA in the presence of dual functional agent， monoethanolamine， which provided strong secondary interfacial interactions for both complexing and crosslinking of constituents. Comprehensive characterization of the polymer-inorganic hybrid materials has been undertaken using a wide range of techniques; XRD， 1H NMR， FT-IR， TGA， DSC， UV-Vis， ED， SEM， TEM and HRTEM. The homogeneous PMMA-ZnO nanocomposites exhibited enhanced UV-sheltering effects in the entire UV range even at very low ZnO content of 0.02 wt%. 展開
2006-10-18 01:02:42
395
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- 急求英文高手翻譯一段摘要 有關夾具設計的
- Abstract In this paper， the general situation of research on agile fixture design is summarized and the achievements and deficiencies in the field of case-based fixture design are pointed out. There are no correlative case bases and match... Abstract In this paper， the general situation of research on agile fixture design is summarized and the achievements and deficiencies in the field of case-based fixture design are pointed out. There are no correlative case bases and matching mechanisms during the period from establishing the fixture planning to designing the fixture in currently used case-based fixture design systems. Thus a great amount of experience of fixture design is wasted and cannot be re-used， which reduces design efficiency and violates the original intention of case-based reasoning methods. In order to realize agility of fixture design， including re-configurability， re-scalability and re-usability， in this paper， a re-configurable agile fixture element base and an element assembly relation base are established. Using these two bases， the fixture structure is function-based decomposed， which makes it easy for an agile fixture to be re-configured and modified. Furthermore， a whole case-based agile fixture design model is presented， in which three modules are introduced， including the evaluation of the similarity of fixture planning， conflict arbitration and the modification of an agile fixture case. The three modules can be used to solve a problem where experience and design results cannot be re-used in the process of fixture design. Against the agile fixture design model， the evaluation method is put forward to evaluate the similarity in various phases. However， a similar case in the base could not generally meet the actual requirement and resolve the conflict between the similar case and the actual condition. Thus three methods， including a local restriction-relaxed method， a function-based conflict arbitration method and a case-based conflict arbitration method， are presented to clear up the conflict and could be used to modify the case to obtain an approach to a design result. Finally， an agile fixture design example is presented. The result demonstrates that the case-based agile fixture design approach can improve re-usability and design efficiency. Keywords: Agile fixture design; Case-based reasoning; Modeling 展開
2009-05-07 02:47:12
460
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- 急 幫我翻譯下這個摘要 有寫好的 幫忙修改下
- 摘要：實驗測定和比較了九頂山雞不同品系雞肉中微量元素的含量的差異。以及同種品系胸肌和腿肌中微量元素的差異。分析不同品系和同種品系之間微量元素的差異。根據(jù)生長性能、雞的血緣... 摘要：實驗測定和比較了九頂山雞不同品系雞肉中微量元素的含量的差異。以及同種品系胸肌和腿肌中微量元素的差異。分析不同品系和同種品系之間微量元素的差異。根據(jù)生長性能、雞的血緣、生產(chǎn)性能等把九頂山雞分為九頂山雞Ⅰ號，九頂山雞Ⅱ號，九頂山雞Ⅲ號。以九頂山雞腿部肌和胸肌為實驗材料采用微波消解及等離子發(fā)射光譜儀（ICP）測定其cd、co微量元素的含量，并進行對比。其結果表明 Abstract: This study is to compare trace elements Jiudingshan chicken (Gus Gallus) and the differences between other species. in same strains Breast and leg muscles difference between the trace element. According to the growth performance， chicken's blood， production performance， etc. Species can be divided into types I and ll and lll Jiudingshan chicken (Gus Gallus). Experimental material as the legs and chest， using microwave plasma atomic emission spectrometry (ICP) of the trace elements measured and compared. The results showed that: 展開
2011-04-30 03:09:01
448
2
- 金蝶財務軟件怎么復制摘要
2012-12-28 12:07:56
707
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- 接地工程論文英文摘要
- 我想找一篇范文
2006-05-24 10:11:07
427
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- ABAQUS關鍵字編輯器可以輸入三階彈性模量嗎
2018-11-21 03:05:24
409
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- 翻譯翻譯，請高手幫我翻譯一下這個說明
- Followthesysteminstallationinstructionscarefullyandinthespecifiedorder.ThesoftwaremustbeinstalledonthecomputerbeforeconnectingtheUSBcable.2.1FacilitiesRequirementsFacilit... Follow the system installation instructions carefully and in the specified order. The software must be installed on the computer before connecting the USB cable. 2.1 Facilities Requirements Facilities requirements for the alpha-SE system are listed in Table 2-1 and the system dimensions are given in Fig. 2-1. As shown in Fig. 2-2， the alpha-SE tool requires a clear work area of 20 by 18 inches (500 by 460 mm)， excluding the operator computer. 2.2 Unpacking the Hardware Opening the Shipping Container Move the alpha-SE shipping container to the area where the tool will be installed. Open the container and remove the top and side pieces of packing foam. Carefully remove all smaller components from the shipping container， verifying that you received all components， as shown in Fig. 2-3. Finally， remove the alpha-SE ellipsometer and position it on your clear 20” by 18” (510 by 460 mm) workspace. Caution: The alpha-SE ellipsometer without sample chuck weighs approximately 37 lbs. (16 kg.). Please find an assistant to lift the alpha-SE unit out of the shipping carton and on to clear work surface. 展開
2008-06-22 06:30:36
888
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- 如何時修改項目管理軟件摘要日期
2010-11-03 11:50:49
409
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- 電工電子產(chǎn)品環(huán)境試驗恒定濕熱試驗標準摘要
GB/T 2423.3-2006 《電工電子產(chǎn)品環(huán)境試驗 第2部分 試驗方法 試驗Cab 恒定濕熱試驗》
恒溫恒濕試驗箱試驗的嚴酷等級有試驗持續(xù)時間、溫度、相對濕度試驗共同決定。除非相關規(guī)范規(guī)定，試驗的溫度、相對濕度應從下面的組合中選擇：
1、溫度：30±2℃ 相對濕度：93±3%RH
2、溫度：30±2℃ 相對濕度：85±3%RH
3、溫度：40±2℃ 相對濕度：93±3%RH
4、溫度：40±2℃ 相對濕度：85±3%RH
5、推薦的持續(xù)時間為：12h、16h、24h、和2天、4天、10天、21天或56天。
考慮到測試時的絕之對誤差、溫度漸變以及工作空間內(nèi)的溫差，本部分規(guī)定的溫度容差為±2K。為了維持恒溫恒濕試驗箱內(nèi)的相對濕度在規(guī)定的容差范圍內(nèi)，必須保持恒溫恒濕試驗箱內(nèi)的任意兩點在任何時間內(nèi)其溫度差異盡可能的小。若溫差超過1K，則不能達到所需的濕度條件。短期的溫度波動也必須保持在±0.5K范圍內(nèi)以維持所要求的濕度條件。
2021-03-24 14:21:56
603
0
- 生物化學翻譯
- To show that HAX-1 degradation is part of the apoptotic process and any involvement Omi may have， we used the ucf-101 inhibitor. ucf-101 is a specific inhibitor of the proteolytic activity of Omi and has been described previously (13). When... To show that HAX-1 degradation is part of the apoptotic process and any involvement Omi may have， we used the ucf-101 inhibitor. ucf-101 is a specific inhibitor of the proteolytic activity of Omi and has been described previously (13). When HK-2 cells were treated with cisplatin in the presence of ucf-101， the percentage of apoptotic cells decreased and the inhibitor significantly blocked HAX-1 degradation. This effect was more pronounced when a higher concentration of the inhibitor was used. To confirm the specificity of the inhibitor in this system and exclude the possibility that another protease rather than Omi is involved in HAX-1 cleavage， we used cell lines derived from mnd2 mice (9). The parent cell line (mnd2-MSCV) derived from mouse embryo fibroblasts has no detectable Omi proteolytic activity (9). The same cell line has been transfected with wild type human Omi cDNA (mnd2-MSCV-Omi) and expresses high levels of active Omi protein (14). We found that in mnd2-MSCV cells， when induced to undergo apoptosis with various stimuli， the number of apoptotic cells was very low. Furthermore， no detectable cleavage of HAX-1 was observed. This is in contrast with the mnd2-MSCV-Omi cells where apoptosis was robust， and HAX-1 levels were inversely proportional to the degree of apoptosis. This experiment clearly shows that Omi is solely responsible for HAX-1 cleavage， which is essential for apoptosis under the conditions used in these experiments. HAX-1 subcellular localization depends on cell type (21， 30) and has been reported to be present in the mitochondria， cytoplasm， or plasma membrane (10， 21， 22， 30). We performed subcellular fractionation to investigate where HAX-1 cleavage by Omi takes place. We found that， in HEK293 cells， HAX-1 was predominantly present in the mitochondria， and this localization did not change in response to apoptotic stimuli. This suggests that Omi can initiate apoptosis in the mitochondria by cleaving HAX-1 protein. This is in accord with a recent study that shows Omi can induce apoptosis in human neutrophils treated with TNF- without being released from the mitochondria (7). Although several studies clearly define HAX-1 as an anti-apoptotic protein， the mechanism of its function is unknown. HAX-1 has sequence similarity to Bcl-2 family of proteins (10， 22). 展開
2007-02-03 21:19:55
522
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